header bg

Question:

You can test the air compressor governor by ____________.

A by increasing and decreasing the air pressure.
Explaination

When a lower air pressure is achieved, the air compressor governor should kick in, and when a greater air pressure is reached, it should kick out. (For these pressures, consult your manufacturer's instructions.) To test this, raise the air pressure by running the engine at a fast idle until the air compressor governor cuts out. Then, to lessen the air pressure, keep stepping on and off the brake pedal until the air compressor governor engages.